# Plainsea Agentic Penetration Testing Platform vs RsaCtfTool: side-by-side comparison (2026) [Plainsea Agentic Penetration Testing Platform](https://cybersectools.com/tools/plainsea-agentic-penetration-testing-platform) is a commercial [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution by [Plainsea](https://cybersectools.com/companies/plainsea). [RsaCtfTool](https://cybersectools.com/tools/rsactftool) is a free [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution. Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | Plainsea Agentic Penetration Testing Platform | RsaCtfTool | |---|---|---| | Pricing model | Commercial | Free | | Category | Penetration Testing | Penetration Testing | | Verified | No | No | | Deployment type | Cloud | On-Premises | | Company size fit | Mid-Market, Enterprise | Startup, SMB | | GitHub stars | – | 6,830 | | Last commit | – | Mar 2026 | | Company | Plainsea | – | | Headquarters | – | – | ### Use cases and capabilities | | Plainsea Agentic Penetration Testing Platform | RsaCtfTool | |---|---|---| | AI Pentesting | Yes | – | | Penetration Testing Framework | Yes | – | | Continuous Testing | Yes | – | | Red Team | Yes | – | | Agentic AI Security | Yes | – | | Vulnerability Prioritization | Yes | – | | Security Reporting | Yes | – | | VAPT | Yes | – | | Security Validation | Yes | – | | CTF | – | Yes | | Education | – | Yes | ### Core features **Plainsea Agentic Penetration Testing Platform** 10 features listed. Sign in on the page to see them. **RsaCtfTool** No features listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Plainsea Agentic Penetration Testing Platform](https://cybersectools.com/tools/plainsea-agentic-penetration-testing-platform) fits if you want a cloud product and you are a mid-market company or an enterprise. - [RsaCtfTool](https://cybersectools.com/tools/rsactftool) fits if you need to run it on your own servers, you are a startup or a small business, you need a free product and you want an open-source product. ## Plainsea Agentic Penetration Testing Platform vs RsaCtfTool FAQ Common questions when comparing Plainsea Agentic Penetration Testing Platform vs RsaCtfTool for penetration testing. ### What is the difference between Plainsea Agentic Penetration Testing Platform and RsaCtfTool? **Plainsea Agentic Penetration Testing Platform**: Agentic AI platform for continuous, full-lifecycle penetration testing, built by Plainsea. **RsaCtfTool**: A utility that attempts to decrypt data from weak RSA public keys and recover private keys using multiple integer factorization algorithms. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Plainsea Agentic Penetration Testing Platform and RsaCtfTool? **Plainsea Agentic Penetration Testing Platform** is made by Plainsea. **RsaCtfTool** is open-source with 6,830 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Plainsea Agentic Penetration Testing Platform a good alternative to RsaCtfTool? Often, yes. Plainsea Agentic Penetration Testing Platform and RsaCtfTool are both Penetration Testing products. Key differences: Plainsea Agentic Penetration Testing Platform is Commercial while RsaCtfTool is Free, RsaCtfTool is open-source. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Plainsea Agentic Penetration Testing Platform vs StealthNet AI](https://cybersectools.com/compare/plainsea-agentic-penetration-testing-platform-vs-stealthnet-ai) - [Plainsea Agentic Penetration Testing Platform vs Parameter Pentesting](https://cybersectools.com/compare/parameter-pentesting-vs-plainsea-agentic-penetration-testing-platform) - [Plainsea Agentic Penetration Testing Platform vs Strike PTaaS](https://cybersectools.com/compare/plainsea-agentic-penetration-testing-platform-vs-strike-ptaas) - [RsaCtfTool vs StealthNet AI](https://cybersectools.com/compare/rsactftool-vs-stealthnet-ai) - [RsaCtfTool vs Parameter Pentesting](https://cybersectools.com/compare/parameter-pentesting-vs-rsactftool) - [RsaCtfTool vs Strike PTaaS](https://cybersectools.com/compare/rsactftool-vs-strike-ptaas) ## Alternatives to each - [See all Plainsea Agentic Penetration Testing Platform alternatives](https://cybersectools.com/alternatives/plainsea-agentic-penetration-testing-platform) - [See all RsaCtfTool alternatives](https://cybersectools.com/alternatives/rsactftool) --- Source: https://cybersectools.com/compare/plainsea-agentic-penetration-testing-platform-vs-rsactftool For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/plainsea-agentic-penetration-testing-platform.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Plainsea Agentic Penetration Testing Platform and RsaCtfTool: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md